Thailand and Cambodia have agreed to an immediate ceasefire, the defence ministers of the two countries said in a joint statement on Saturday.
Both sides have agreed to freeze all troop movements and allow civilians living in border areas to return home, halting weeks of intense border clashes that have killed at least 41 people and displaced almost a million people.
The ceasefire took effect at noon local time (05:00 GMT). Once it has held for 72 hours, 18 Cambodian soldiers held by Thailand will also be released, the statement said.
The breakthrough came after Thai and Cambodian officials held several days of talks aimed at ending fresh fighting between the two countries.
The joint statement outlines the terms of "de-escalation", which includes ceasing "attacks on civilians, civilian objects and infrastructures, and military objectives of either side".
